I am writing to you to let you know that one of your people, namely Patrick Harnett, was recently involved in online fraud. To substantiate this you could read this thread
https://bitcointalk.org/index.php?topic=121915.0
(his handle is tagged as a scammer on that forum) or simply google "scammer tag" - he comes up in 1st position.

The first purports to offer the general public investments in a "fund", which was used covertly to purchase unsecured "debt" in a failed Ponzi scheme (currently investigated by the SEC - http://blogs.telegraph.co.uk/technology/willardfoxton2/100007836/bitcoin-pirate-scandal-sec-steps-in-amid-allegations-that-the-whole-thing-was-a-ponzi-scheme/ ).

The second was a longer running "deposit" offer where Patrick promised fixed returns. In both cases he ran with the deposits, in total value of about 100`000 to 200`000 USD.